<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="/the-good-thing-of-wang-feizhai/vue_basic/js/vue.js"></script>
    <title>Document</title>
</head>
<body>
    <div id="root">
        <h2>今天天气很好{{isHot ? '炎热' : '凉爽'}}</h2>
        <h2>今天天气很好{{info}}</h2>
        <!-- @click后可以写一些简单的参数,运算 -->
        <button @click="isHot = !isHot">切换天气</button>
        <button @click="window.alert(1)">切换天气</button>
        <button @click="this.alert(1)">切换天气</button>
    </div>
</body>
<script>
    new Vue({
        el:'#root',
        data:{
            isHot:true,
            window
        },
        methods: {
            changeWeather(){
                this.isHot = !this.isHot
            }
        },
        computed:{
            info(){
                return this.isHot ? '炎热' : '凉爽'
            }
        }
    })
</script>
</html>